SN/T 2331-2016 English PDFUS$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2331-2016: Method for the determination of sugar in cotton fiber for import and export - Hight performance liquid chromatography(HPLC)method Status: Valid SN/T 2331: Historical versions
Basic dataStandard ID: SN/T 2331-2016 (SN/T2331-2016)Description (Translated English): Method for the determination of sugar in cotton fiber for import and export - Hight performance liquid chromatography(HPLC)method Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.30 Word Count Estimation: 10,177 Date of Issue: 2016-12-12 Date of Implementation: 2017-07-01 Older Standard (superseded by this standard): SN/T 2331-2009 Regulation (derived from): State-Quality-Inspection-Accredidation (2016) No.590 Issuing agency(ies): General Administration of Customs SN/T 2331-2016: Method for the determination of sugar in cotton fiber for import and export - Hight performance liquid chromatography(HPLC)method---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Method for the ditermination of sugar in cotton fiber for import and export-Hight performance liquid chromatography (HPLC) method ICS 59.080.30 W04 People's Republic of China Exit Inspection and Quarantine standards Replacing SN/T 2331-2009 Import and export of cotton fiber sugar test methods High performance liquid chromatography Hightperformance liquid chromatography (HPLC) method 2016-12-12 released 2017-07-01 implementation People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces SN/T 2331-2009 "Textile raw materials cotton sugar content detection method of high performance liquid chromatography," and SN/T 2331-2009 compared to the main technical changes are as follows. --- Removed the scope of "quick test"; --- Increased in the range of "including glucose, lactose, cellobiose, melibiose, melezitose"; --- Increased 5.9, on the provisions of the test water; --- Removed 7.5 in the "analysis of the standard solution according to the above analysis conditions"; --- Added Chapter 11 "Test Report." This standard also made the following editorial changes. --- Modify the standard Chinese and English names. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted by Tianjin Entry-Exit Inspection and Quarantine Bureau, People's Republic of China. The main drafters of this standard. Zhao Qing, Wang Kun, Feng Zhi Feng, Zhou Lei. This standard replaces the standards previously issued as. --- SN/T 2331-2009. Import and export of cotton fiber sugar test methods High performance liquid chromatography1 ScopeThis standard specifies the cotton sugar content of high performance liquid chromatography (HPLC) method. This standard applies to the determination of cotton sugar content, including glucose, lactose, cellobiose, melibiose, melezitose.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 analytical laboratory water specifications and test methods3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Internal sugar internalsaccharide The self-growth of cotton fiber produces soluble sugar, also known as plant physiological sugar, such as sugar, glucose, lactose, sucrose, cellobiose and so on. 3.2 Exo sugar externalsaccharide Affected by insect contact with cotton, or fall cold, dry cotton leaf nectary secretions, soluble on the surface of cotton fibers Sugar, also known as exogenous substances or insect sugars, such as melibiose, melezitose and the like. 3.3 Sugar in cotton fiber sugarcontentofcottonfiber The total amount of soluble sugars contained, including internal and external sugars.4 principleWith water-soaked cotton fibers, the extract was concentrated, fixed volume, with a series of amino-bonded column for quantitative analysis by high performance liquid chromatography.5 reagent5.1 Acetonitrile. Chromatographic purity. 5.2 glucose. Purity ≥ 99%. 5.3 lactose. Purity ≥ 99%. 5.4 Maltose Purity ≥99%. 5.5 Melibiose. Purity ≥98%. 5.6 Mason sugar purity of ≥ 99%. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 2331-2016_English be delivered?Answer: Upon your order, we will start to translate SN/T 2331-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of SN/T 2331-2016_English with my colleagues?Answer: Yes. The purchased PDF of SN/T 2331-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version SN/T 2331-2016?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version SN/T 2331-2016 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
